Hello Wouter,
well, it is not possible to create a condition from a table. I have captured that as a feature request internally, it could be a good idea to have that. Nevetheless, it is possible to use formula to achieve a similar result using Keep Formula: $condition.keep('state', isEqualTo('A')) where:
$condition is the current condition with all properties
‘state’ is the name of the property
'A' is the property itself and that you want to keep
I hope this is helpful,
--Selmane